13440135524 has 12 divisors (see below), whose sum is σ = 23651636400. Its totient is φ = 6682525128.

The previous prime is 13440135487. The next prime is 13440135547. The reversal of 13440135524 is 42553104431.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9384854 + ... + 9386285.

It is an arithmetic number, because the mean of its divisors is an integer number (1970969700).

Almost surely, 2^13440135524 is an apocalyptic number.

It is an amenable number.

13440135524 is a deficient number, since it is larger than the sum of its proper divisors (10211500876).

13440135524 is a wasteful number, since it uses less digits than its factorization.

13440135524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18771322 (or 18771320 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 13440135524 its reverse (42553104431), we get a palindrome (55993239955).

The spelling of 13440135524 in words is "thirteen billion, four hundred forty million, one hundred thirty-five thousand, five hundred twenty-four".